Reaction of alkane

Some of the alkene is difficult to react, why not?
Answer: because the alkene bond on the saturated purpose of which is saturated bond orbitals.
Change the 3,4,5 trimethyl nonane compounds into n-butene:

H H H H H H H H H
H-C - C - C - C - C - C - C - C - C - H
H H CH3 CH3 CH3 H H H H

From the structure above robahlah into the form of n-butene
The first thing we do is determine based on the reaction simpul-simpul/pusat-pusat pragmen and target compounds will be changed into the form of n-butene

H H H H H H H H H
H - C - C - C - C - C - C - C - C - C - H
H H CH3 CH3 CH3 H H H H

From the node that has the mark on so we can get some stricture of n-butene, namely

1.n-butene
H H H
H- C - C - C - H
H H CH3

2. n-butene

H H
H- C- C- H
CH3 CH3

3. n-butene

H H H H
H- c - C - C - C - H
H H H H